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  • Remote sensing of radiation stress gradients from optical imagery

    Creator:
    Killian, Jason R.
    Abstract:
    Wave-induced circulation is the defining characteristic of the nearshore. Within this region, the constant feedback cycle between incoming waves, wave-generated currents, and the mobile sediment bed is responsible for the evolution of complex patterns in nearshore and beach morphology. Central to our understanding of this system is knowledge of the...
    Resource Type:
    Masters Thesis
    Full Text:
    Stress Gradients from Optical Imagery Abstract approved: Robert A. Holman Wave-induced circulation is

  • Dune erosion models and swash zone kinematics from remote video observations

    Creator:
    Palmsten, Margaret L.
    Abstract:
    The subaerial beach, composed of sand dunes and the foreshore, provides a natural buffer zone between vulnerable land and the dissipation of storm wave energy due to wave breaking. The natural beauty of this region is attractive to people, and as a result, significant investment has been placed in this...
    Resource Type:
    Dissertation
    Full Text:
    : _____________________________________________________________________ Robert A. Holman The subaerial beach, composed of sand dunes and the foreshore, provides a

  • Development of 2D models to estimate nearshore bathymetry and sediment transport

    Creator:
    Splinter, Kristen D.
    Abstract:
    We examine the interactions and feedbacks between bathymetry, waves, currents, and sediment transport. The first two pro jects focus on the use of remote sensing techniques to expand our knowledge of the nearshore. Due to the plethora of snap-shot data that is available from satellites and their distribution via Google...
    Resource Type:
    Dissertation
    Full Text:
    - posed by Lippmann and Holman (1990). . . . . . . . . . . . . . . . . . . . 2 2.1 Example of a linear

  • The sediment response of a dissipative beach to variations in wave climate

    Creator:
    Haxel, Joseph H.
    Abstract:
    Using wave and wind data from nearby buoys and gauges, real time kinematic global positioning system (RTK-GPS) and light detection and ranging (lidar) topographic survey data, and a robust video record, we have quantified the Large Scale Coastal Behavior (LSCB) of a dissipative end member beach in the Pacific Northwest....
    Resource Type:
    Masters Thesis
    Full Text:
    Dissipative Beach toVariations in Wave Climate. Abstract Approved: Robert A. Holman Using wave and wind

  • Remote measurements of waves and currents over complex bathymetry

    Creator:
    Chickadel, Carmine C. (Carmine Christopher)
    Abstract:
    Waves are the primary input of energy in the nearshore region, and together with the currents forced through the transfer of momentum that occurs during the wave breaking process they are the principal mechanism for sediment transport in the nearshore. The basic physics of waves and currents are thought to...
    Resource Type:
    Dissertation
    Full Text:
    : ___________________________________________________ Robert A. Holman Waves are the primary input of energy in the nearshore region, and

  • Predicting the longshore-variable coastal response to hurricanes

    Creator:
    Stockdon, Hilary F.
    Abstract:
    The longshore variability of the coastal response to hurricanes may be examined within the framework of a storm-impact scaling model that compares spatially-variable beach morphology and fluid forcing. The relative elevations of dune height and storm-induced water levels are used to define three impact regimes (swash, collision, and overwash), within...
    Resource Type:
    Dissertation
    Full Text:
    : _____________________________________________________ Robert A. Holman The longshore variability of the coastal

  • Quantitative analysis of nearshore morphological variability based on video imaging

    Creator:
    Alexander, Patricia Soupy
    Abstract:
    In the past, classification systems for the analysis of morphodynamic variability have been developed in an attempt to understand large scale coastal behavior. The motivation behind the creation of these classification systems has been to provide a framework of analysis, in order to understand large scale response to seasonal variability,...
    Resource Type:
    Masters Thesis
    Full Text:
    of Nearshore Morphological Variability Based on Video Imaging. Abstract Approved: Robert A. Holman

  • Adaptation to long-term osmotic stress in a domesticated Saccharomyces cerevisiae strain

    Creator:
    Holman, Douglas S.
    Abstract:
    Osmotic stress is a common challenge faced by organisms in environments with variable salinity or aridity. Understanding the evolutionary mechanisms underlying adaptation to osmotic stress may have wide applications, including management of populations experiencing climate change, or engineering industrial organisms involved in processes such as fermentation. While Saccharomyces cerevisiae is...
    Resource Type:
    Honors College Thesis
    Full Text:
    domesticated Saccharomyces cerevisiae strain by Douglas Holman A THESIS

  • Load Path Investigation in a Light-Frame Wood House with Complex Geometry

    Creator:
    Holman, Justin D.
    Abstract:
    The objective of this study was to investigate load paths in an existing light-frame wood structure with complex geometry, using previously established computer modeling methods. The structural model is derived from an existing, multi-level residence located in Corvallis, Oregon. For the purpose of this study, the existing structure was simplified...
    Resource Type:
    Masters Thesis
    Full Text:
    Complex Geometry by Justin D. Holman A THESIS submitted to Oregon

  • Pyrenophora tritici-repentis : investigation of factors that contribute to pathogenicity

    Creator:
    Holman, Thomas W.
    Abstract:
    Pyrenophora tritici-repentis (Ptr) is the necrotrophic fungus responsible for tan spot of wheat (Triticum aestivum). Ptr causes disease on susceptible wheat cultivars through the production and secretion of host-selective toxins (HSTs). HSTs are compounds that are only known to be produced by fungi and considered to be primary determinants of...
    Resource Type:
    Masters Thesis
    Full Text:
    ), and the R-gene mediator, Sgt1. Ptr exhibits a complex race structure determined by the HST(s